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Finding the Fourth Proportional to 189,646.98, 261,737.91 and 183,415.86

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Solution

The fourth proportional to 189,646.98, 261,737.91 and 183,415.86 is: 253,138.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,646.98 : 261,737.91 = 183,415.86 : x
  2. Step 2: Convert to fraction form
    189,646.98/261,737.91 = 183,415.86/x
  3. Step 3: Cross multiply
    189,646.98x = 261,737.91 × 183,415.86
  4. Step 4: Simplify right side
    189,646.98x = 48,006,883,857.25
  5. Step 5: Solve for x
    x = 48,006,883,857.25/189,646.98
  6. Step 6: Final answer
    x = 253,138.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.